Telescopic lengthening mechanism of concrete leveling machine

Abstract

The utility model relates to a telescopic lengthening mechanism of a concrete leveling machine, and belongs to the technical field of road and bridge construction equipment. The concrete leveling machine is provided with a main truss and comprises a telescopic assembly, a lifting assembly and a vibration leveling plate. The fixed end of the telescopic assembly is fixedly installed at the end of the main truss, and the telescopic end of the telescopic assembly is fixedly provided with the lifting assembly. The fixed end of the lifting assembly is fixedly installed at the outer end of the telescopic assembly, and the lifting end of the lifting assembly faces downwards. A rotating assembly driven by a motor is arranged at the lower end of the lifting assembly, and a vibration leveling plate is fixedly installed at the lower end of the rotating assembly. The leveling device is additionally arranged on the concrete leveling machine, can adapt to the construction of road surface width gradual change, and can adjust the leveling working width according to the width of a road surface, so that efficient construction is realized.

Description

Technical Field

[0001] The utility model relates to a telescopic extension mechanism of a concrete leveler, belonging to the technical field of road and bridge construction equipment. Background Art

[0002] During road and bridge construction, concrete is usually spread and then vibrated and leveled using a screed machine. The main working component of the screed machine is a vibrating screed plate, which is equipped with a vibrator. The vibrating screed plate vibrates and leveled the concrete surface.

[0003] In actual construction, the pavement width at some construction sites varies, rather than being fixed. Traditional concrete screed machines, however, have a fixed width and therefore are not well suited for gradually changing pavement widths. They require the main pavement to be completed before the gradual transition, which is not only inefficient but also lacks suitable equipment for the small, gradual transition area. Utility Model Content

[0004] The purpose of the utility model is to provide a telescopic extension mechanism of a concrete leveler to solve the above technical problems and to be able to perform adaptive leveling construction when the width of the road surface changes.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A telescopic extension mechanism for a concrete leveler. The concrete leveler has a main truss, including a telescopic assembly, a lifting assembly and a vibrating screed plate; the fixed end of the telescopic assembly is fixedly installed on the end of the main truss, and the lifting assembly is fixedly set on the telescopic end of the telescopic assembly; the fixed end of the lifting assembly is fixedly installed on the outer end of the telescopic assembly, and the lifting end of the lifting assembly faces downward; a rotating assembly driven by a motor is provided at the lower end of the lifting assembly, and the vibrating screed plate is fixedly installed at the lower end of the rotating assembly.

[0007] A further improvement of the technical solution of the present utility model is as follows: the telescopic assembly includes a set of multi-stage telescopic cylinders and several telescopic cylinders driving the telescopic cylinders; the multi-stage telescopic cylinder includes several telescopic cylinders that are set in sequence; the cylinder barrel of the telescopic cylinder is fixed to the outer wall of the telescopic cylinder, and the telescopic rod of the telescopic cylinder is fixedly connected to the outer wall of the telescopic cylinder of the next level.

[0008] A further improvement of the technical solution of the present utility model is as follows: the lifting assembly includes a set of multi-stage lifting cylinders and several lifting cylinders that drive the lifting cylinders; the multi-stage lifting cylinder includes several lifting cylinders that are set in sequence; the cylinder barrel of the lifting cylinder is fixed to the outer wall of the lifting cylinder, and the moving rod of the lifting cylinder is fixedly connected to the outer wall of the lifting cylinder of the next level.

[0009] A further improvement of the technical solution of the present utility model is as follows: the lifting assembly includes a two-stage lifting cylinder and a lifting cylinder that drives the lifting cylinder; wherein, the first-stage lifting cylinder is fixed to the outer end of the telescopic assembly, and the second-stage lifting cylinder is sleeved inside the first-stage lifting cylinder; the cylinder barrel of the lifting cylinder is fixed to the outer wall of the first-stage lifting cylinder, and the moving rod of the lifting cylinder is fixedly connected to the outer wall of the second-stage lifting cylinder.

[0010] The further improvement of the technical solution of the present utility model is as follows: the vibrating screed plate comprises a screed plate and a pusher plate integrally and vertically arranged at one end of the screed plate; a vibrator is arranged on the screed plate.

[0011] Due to the adoption of the above technical solution, the technical effects achieved by the utility model are as follows:

[0012] The utility model discloses a telescopic extension mechanism for a concrete screed machine, which has an extended vibrating screed plate. Through the cooperation of a telescopic component and a lifting component, the extended vibrating screed plate can be delivered to a widened road surface area, and can be adjusted in real time according to the gradual change in road surface width. After the mechanism is used, the use range of the concrete screed machine is increased, and for construction sites with gradually changing road surface widths, one-time construction can be achieved, thereby improving work efficiency.

[0013] The utility model uses a multi-stage sleeve and a cylinder structure as a lifting component and a telescopic component. After the sleeves are installed in sequence, a cylinder is set between adjacent sets to drive the movement of the sleeves. The structure is carried by the sleeves and has a strong overall bearing capacity, which can ensure the stable movement and adjustment of the vibration screed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the lifting assembly of the utility model;

[0016] Figure 3 It is a schematic diagram of the main view of the utility model;

[0017] Figure 4 This is a schematic diagram of the installation of the utility model;

[0018] Among them, 1. Screed plate, 2. Push plate, 3. Rotating assembly, 4. Telescopic cylinder, 5. Telescopic oil cylinder, 6. Lifting cylinder, 7. Lifting oil cylinder. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] The utility model relates to a telescopic extension mechanism of a concrete leveler, which is installed on the concrete leveler and can perform leveling construction on the road surface outside the concrete leveler. The telescopic working length can be adjusted and can adapt to the leveling construction of the road surface with gradually changing width.

[0022] The mechanism is installed on a concrete leveling machine. The concrete leveling machine has a main truss. The mechanism is installed at both ends of the main truss and can be telescoped and lengthened outward.

[0023] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, the mechanism includes a telescopic assembly, a lifting assembly, and a vibrating screed. The telescopic assembly, capable of extending and retracting, has a fixed end and a telescopic end. The fixed end is fixedly mounted to the end of the main truss, while the lifting assembly is fixed to the outermost end of the telescopic end. The telescopic assembly is used to extend and retract the lifting assembly and vibrating screed in width.

[0024] The lifting assembly is capable of raising and lowering the height. It has a fixed top and a lifting end. The fixed end of the lifting assembly is fixedly mounted on the outer end of the telescopic assembly, and the lifting end of the lifting assembly moves downward. A motor-driven rotating assembly 3 is located at the bottom of the lifting end of the lifting assembly. Furthermore, a vibrating screed is fixedly mounted at the lower end of the rotating assembly 3. The lifting assembly drives the rotating assembly 3 and the vibrating screed to raise and lower the height. The rotating assembly is a purchased component, such as a rotary drive, a hydraulic turntable, etc., which can meet the requirements of the application.

[0025] The structures of the telescopic component and the lifting component are similar, except that the telescopic component performs a telescopic movement in the horizontal direction, while the lifting component performs a lifting movement in the vertical height direction.

[0026] The telescopic assembly and the lifting assembly can be arranged in a variety of ways, for example, they can be multi-stage cylinders.

[0027] In practice, a multi-stage sleeve and cylinder structure is typically used. The multi-stage sleeve serves as the load-bearing mechanism for telescopic movement, while the cylinder serves as the driving mechanism for telescopic movement. Specifically, the telescopic assembly includes a multi-stage telescopic sleeve and several telescopic cylinders 5 that drive the sleeves. The telescopic sleeves 4 are multi-stage, meaning that multiple sleeves 4 are sequentially mounted. A telescopic cylinder 5 is positioned between two adjacent sleeves 4, and is used to move the sleeves 4 relative to the upper-stage sleeve. The telescopic cylinder 5 comprises a cylinder barrel and a telescopic rod. The barrel of the telescopic cylinder 5 is fixed to the outer wall of the sleeve 4 of a given stage, while the outermost end of the telescopic rod of the same sleeve is fixedly connected to the outer wall of the sleeve 4 of the next stage. This allows the sleeve 4 of the next stage to be pushed out from the sleeve 4 of the current stage. A three-stage telescopic sleeve is generally sufficient, but a two-stage, four-stage, or five-stage telescopic sleeve is also possible. This telescopic assembly has a high load-bearing capacity, and each cylinder can be controlled individually, making overall operation easier.

[0028] The lifting assembly also uses a multi-stage sleeve and cylinder structure, which is similar to the structure of the telescopic assembly mentioned above. The lifting assembly includes a set of multi-stage lifting cylinders and a number of lifting cylinders 7 that drive the lifting cylinders 6. The lifting cylinders 6 have multiple levels, that is, multiple lifting cylinders 6 are set in sequence. A lifting cylinder 7 is set between two adjacent lifting cylinders 6, and the lifting cylinder 7 is used to drive the lifting cylinder 6 to move up and down relative to the lifting cylinder 6 of the previous level. The lifting cylinder 7 has a cylinder barrel and a moving rod. The cylinder barrel of the lifting cylinder 7 is fixed on the outer wall of the lifting cylinder 6 of a certain level, and the moving rod of the lifting cylinder 7 is fixedly connected to the outer wall of the lifting cylinder 6 of the next level. In this way, the lifting cylinder 6 of the next level can be pushed out of the lifting cylinder 6 of the current level. Generally, a two-stage telescopic cylinder is sufficient for use, and a three-stage telescopic cylinder can also be set. The lifting assembly of this structure has a high load-bearing capacity, and each telescopic cylinder can be controlled individually, making it easier to operate the entire assembly.

[0029] like Figure 2 As shown in the figure, the lifting assembly is a two-stage lifting cylinder. It includes two lifting cylinders 6 and a lifting cylinder 7 that drives the lifting cylinders. The first-stage lifting cylinder 6 is fixed to the outer end of the telescopic assembly, and the second-stage lifting cylinder 6 is inserted into the first-stage lifting cylinder 6. The cylinder of the lifting cylinder 7 is fixed to the outer wall of the first-stage lifting cylinder 6, and the outermost end of the moving rod of the lifting cylinder 7 is fixedly connected to the outer wall of the second-stage lifting cylinder 6.

[0030] The above telescopic cylinder and lifting cylinder are usually rectangular cylinder structures.

[0031] This mechanism uses a vibrating screed to vibrate and level the concrete. As shown in the figure, the structure includes a screed 1 and a pusher 2. The screed 1 is horizontally positioned, while the pusher 2 is integral with the screed 1 and vertically positioned relative to it. A vibrator is mounted on the screed 1 to drive the screed.

[0032] This mechanism is installed on the concrete screed machine. During operation, the telescopic assembly drives the lifting assembly and the vibrating screed plate to extend outward to the outermost end of the road surface. The lifting assembly then controls the vibrating screed plate to descend to the calibrated height for vibratory leveling. Simultaneously, the telescopic assembly drives the vibrating screed plate to retract. During the retraction process, the pusher plate 2 faces the concrete screed machine, scraping and pushing away excess concrete. Upon reaching the edge of the concrete screed machine, the rotating assembly 3 drives the vibrating screed plate to rotate forward, pushing the excess material forward. The lifting assembly then drives the vibrating screed plate upward, while the entire machine moves forward. Once in position, the telescopic assembly drives the lifting assembly and the vibrating screed plate to extend outward to the outermost end of the road surface. This process repeats.

[0033] The utility model is installed on a concrete leveler and can adapt to the construction of a road surface with a gradually changing width, and can adapt the leveling working width according to the width of the road surface, thereby realizing efficient construction.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic extension mechanism for a concrete screed machine, the concrete screed machine having a main truss, characterized by: The invention comprises a telescopic component, a lifting component and a vibrating screed plate; the fixed end of the telescopic component is fixedly mounted on the end of the main truss, and the lifting component is fixedly arranged on the telescopic end of the telescopic component; the fixed end of the lifting component is fixedly mounted on the outer end of the telescopic component, and the lifting end of the lifting component faces downward; a rotating component (3) driven by a motor is arranged at the lower end of the lifting component, and the vibrating screed plate is fixedly mounted on the lower end of the rotating component (3).

2. The telescopic extension mechanism of a concrete screed machine according to claim 1, characterized in that: The telescopic assembly comprises a multi-stage telescopic cylinder and a plurality of telescopic oil cylinders (5) for driving the telescopic cylinders; the multi-stage telescopic cylinder comprises a plurality of telescopic cylinders (4) which are sequentially mounted; the cylinder barrel of the telescopic oil cylinder (5) is fixed to the outer wall of the telescopic cylinder (4), and the telescopic rod of the telescopic oil cylinder (5) is fixedly connected to the outer wall of the telescopic cylinder (4) of the next stage.

3. The telescopic extension mechanism of a concrete screed machine according to claim 1, characterized in that: The lifting assembly includes a multi-stage lifting cylinder and a plurality of lifting cylinders (7) for driving the lifting cylinders (6); the multi-stage lifting cylinder includes a plurality of lifting cylinders (6) that are sequentially mounted; the cylinder of the lifting cylinder (7) is fixed to the outer wall of the lifting cylinder (6), and the moving rod of the lifting cylinder (7) is fixedly connected to the outer wall of the lifting cylinder (6) of the next stage.

4. The telescopic extension mechanism of a concrete screed machine according to claim 3, characterized in that: The lifting assembly includes a two-stage lifting cylinder (6) and a lifting oil cylinder (7) for driving the lifting cylinder; wherein the first-stage lifting cylinder (6) is fixed to the outer end of the telescopic assembly, and the second-stage lifting cylinder (6) is sleeved inside the first-stage lifting cylinder (6); the cylinder barrel of the lifting oil cylinder (7) is fixed to the outer wall of the first-stage lifting cylinder (6), and the moving rod of the lifting oil cylinder (7) is fixedly connected to the outer wall of the second-stage lifting cylinder (6).

5. The telescopic extension mechanism of a concrete screed machine according to claim 4, characterized in that: The vibrating screed plate comprises a screed plate (1) and a pusher plate (2) integrally and vertically arranged at one end of the screed plate (1); a vibrator is arranged on the screed plate (1).

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